Political Group Survey: the PVS survey question on same-sex marriage
Source: Project Vote Smart
Project Vote Smart infers candidate issue stances on key topics by summarizing public speeches and public statements. Candidates are given the opportunity to respond in detail; about 16% did so in the 2010 races.

Project Vote Smart summarizes candidate stances on the following topic: 'Social Issues: Should marriage only be between one man and one woman?'